| Tail Number / N-Number | N1904S |
| Manufacturer | LEARJET INC |
| Model | 45 |
| Year Built | 1999 |
| Manufacturer's Serial Number | 053 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 12 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Engine Manufacturer | ALLIEDSIGN |
| Engine Model | TFE731-60 |
| Engine Type | Turbo-fan |
| Number of Engines | 2 engines |
| Thrust per Engine | 5,000 pounds-force (22.2 kN) |
| Total Thrust | 10,000 pounds-force (44.5 kN) |
| Type of Registrant | LLC |
| Owner Name | 1904 LLC |
| Street | 150 E BRIDGE ST |
| City | ELYRIA |
| State | OH |
| Zip Code | 44035-5219 |
| Region | Great Lakes |
| County | Lorain County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1999-10-16 |
| Certificate Issue Date | 2003-10-24 |
| Last Action Date | 2021-11-30 |
| Expiration Date | 2028-12-31 |
| Status | Valid Registration |
| Mode S Code | 50265440 |
| Mode S Code Hex | A16B20 |